The hardiness and ingenuity of the Sinagua people allowed them to survive by farming, hunting, and trading in Arizona's Walnut Canyon more than 800 years ago. The relatively dry climate of this area was revealed by past peoples when they called this area, Sierra De Sid Agua, or "mountains without water". The Sinagua,s cliff dwellings were shaped out of alcoves in the limestone cliffs by cementing rocks together with a brown colored clay.